diff --git a/client/src/main/java/cn/icanci/loopstack/ras/client/holder/RasRepositoryHolder.java b/client/src/main/java/cn/icanci/loopstack/ras/client/holder/RasRepositoryHolder.java
index a419d692ab9d5095ed753eeab0da633fd9903eb5..b95ad72c16f3858f7cc8d4fd5245ac319e35f4b9 100644
--- a/client/src/main/java/cn/icanci/loopstack/ras/client/holder/RasRepositoryHolder.java
+++ b/client/src/main/java/cn/icanci/loopstack/ras/client/holder/RasRepositoryHolder.java
@@ -6,6 +6,7 @@ import cn.icanci.loopstack.api.client.Client;
 import cn.icanci.loopstack.api.client.http.HttpClientImpl;
 import cn.icanci.loopstack.lsi.common.result.R;
 import cn.icanci.loopstack.ras.client.exception.ServerApplicationWrongfulException;
+import cn.icanci.loopstack.ras.client.exception.ServiceNotFoundException;
 import cn.icanci.loopstack.ras.client.holder.model.ApplicationKey;
 import cn.icanci.loopstack.ras.client.holder.model.ApplicationValue;
 import cn.icanci.loopstack.ras.client.holder.model.ClientApplicationValue;
@@ -279,7 +280,9 @@ public class RasRepositoryHolder implements InitializingBean {
     }
 
     private void initClientLoadBalance() {
-
+        // 构建key
+        // 构建算子逻辑
+        // 构建蚁群算法
     }
 
     /**
@@ -290,7 +293,11 @@ public class RasRepositoryHolder implements InitializingBean {
      */
     public String routingRequestAddress(String appId) {
         // REQUEST_FORMAT
-        
+        ClientApplicationValue clientApplicationValue = CLIENT_APPLICATION_MAP.get(appId);
+        if (clientApplicationValue == null) {
+            throw new ServiceNotFoundException("Service for appId: " + appId + " not found!");
+        }
+
         return null;
     }
 }
diff --git a/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/FirstLoadBalancing.java b/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/FirstLoadBalancing.java
new file mode 100644
index 0000000000000000000000000000000000000000..969749caf74df50e78ec2582998c283a2c774ead
--- /dev/null
+++ b/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/FirstLoadBalancing.java
@@ -0,0 +1,31 @@
+package cn.icanci.loopstack.ras.client.holder.loadbalancing;
+
+import cn.icanci.loopstack.ras.client.holder.model.ApplicationValue;
+import cn.icanci.loopstack.ras.client.holder.model.ClientApplicationValue;
+import cn.icanci.loopstack.ras.common.enums.LoadBalanceTypeEnum;
+
+import java.util.Optional;
+import java.util.Set;
+
+import org.springframework.stereotype.Service;
+
+/**
+ * 负载均衡算法实现
+ * 
+ * @author icanci
+ * @since 1.0 Created in 2023/01/23 10:23
+ */
+@Service
+@LoadBalancingBean(LoadBalanceTypeEnum.FIRST)
+public class FirstLoadBalancing extends LoadBalancingCache implements LoadBalancing {
+
+    @Override
+    public Optional<ApplicationValue> route(ClientApplicationValue clientApplicationValue) {
+        if (clientApplicationValue == null) {
+            return Optional.empty();
+        }
+        Set<ApplicationValue> applicationValues = clientApplicationValue.getApplicationValues();
+
+        return null;
+    }
+}
diff --git a/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/LoadBalancing.java b/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/LoadBalancing.java
new file mode 100644
index 0000000000000000000000000000000000000000..6698aecbf0106d113884d2827113d0a440bcdb06
--- /dev/null
+++ b/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/LoadBalancing.java
@@ -0,0 +1,22 @@
+package cn.icanci.loopstack.ras.client.holder.loadbalancing;
+
+import cn.icanci.loopstack.ras.client.holder.model.ApplicationValue;
+import cn.icanci.loopstack.ras.client.holder.model.ClientApplicationValue;
+
+import java.util.Optional;
+
+/**
+ * 负载均衡算法实现
+ * 
+ * @author icanci
+ * @since 1.0 Created in 2023/01/23 10:23
+ */
+public interface LoadBalancing {
+    /**
+     * 根据AppId路由到合适的
+     * 
+     * @param clientApplicationValue 客户端服务值
+     * @return 返回目标实现
+     */
+    Optional<ApplicationValue> route(ClientApplicationValue clientApplicationValue);
+}
diff --git a/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/LoadBalancingBean.java b/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/LoadBalancingBean.java
new file mode 100644
index 0000000000000000000000000000000000000000..8b8e8f9737cb6cf618fc607723f54c25e98a6137
--- /dev/null
+++ b/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/LoadBalancingBean.java
@@ -0,0 +1,23 @@
+package cn.icanci.loopstack.ras.client.holder.loadbalancing;
+
+import cn.icanci.loopstack.ras.common.enums.LoadBalanceTypeEnum;
+
+import java.lang.annotation.*;
+
+/**
+ * 负载均衡标记tag
+ * 
+ * @author icanci
+ * @since 1.0 Created in 2023/01/23 10:26
+ */
+@Inherited
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface LoadBalancingBean {
+    /**
+     * 负载均衡实现
+     * 
+     * @return LoadBalanceTypeEnum
+     */
+    LoadBalanceTypeEnum value();
+}
diff --git a/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/LoadBalancingCache.java b/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/LoadBalancingCache.java
new file mode 100644
index 0000000000000000000000000000000000000000..3084a42968ff5ead8617e3a9190c8873968ca46b
--- /dev/null
+++ b/client/src/main/java/cn/icanci/loopstack/ras/client/holder/loadbalancing/LoadBalancingCache.java
@@ -0,0 +1,13 @@
+package cn.icanci.loopstack.ras.client.holder.loadbalancing;
+
+/**
+ * 负载均衡缓存
+ * - 存储执行的过程和结果
+ * - 缓存分为2种，一种是元数据缓存，一种是执行过程缓存
+ *
+ * @author icanci
+ * @since 1.0 Created in 2023/01/23 10:24
+ */
+public abstract class LoadBalancingCache {
+
+}